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A piston cylinder assembly shown in the figure contains 0.9 kg of air. Initially the piston is resting on the stops and has a temperature of T, = 190°C. The height, h, from the bottom of the cylinder is 1.2 m. The piston has a mass (mp) of 3.6 kg and a diameter (D) of 600 mm. Weights with a total mass of mw are sitting on top of the piston. Heat is added until the temperature reaches T2-260°C at which point the piston just starts to lift off the stops. More heat is then added until the temperature reaches T;= 310°C. Treat air as an ideal gas. Assume Po = 101 kPa. a) Determine the initial pressure P1,of the air. b) Determine the mass of the weights, mw. c) Determine the change in height of the piston from state 1 to state 3 (h3-hi). d) Draw all state points and process lines on a P-V (pressure - volume) diagram. Include labeled constant temperature lines and label the pressure and volume values corresponding to each state point.

A piston cylinder assembly shown in the figure contains 0.9 kg of air. Initially the piston is resting on the stops and has a temperature of T, = 190°C. The height, h, from the bottom of the cylinder is 1.2 m. The piston has a mass (mp) of 3.6 kg and a diameter (D) of 600 mm. Weights with a total mass of mw are sitting on top of the piston. Heat is added until the temperature reaches T2-260°C at which point the piston just starts to lift off the stops. More heat is then added until the temperature reaches T;= 310°C. Treat air as an ideal gas. Assume Po = 101 kPa. a) Determine the initial pressure P1,of the air. b) Determine the mass of the weights, mw. c) Determine the change in height of the piston from state 1 to state 3 (h3-hi). d) Draw all state points and process lines on a P-V (pressure - volume) diagram. Include labeled constant temperature lines and label the pressure and volume values corresponding to each state point.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A piston cylinder assembly shown in the figure contains 0.9 kg of air. Initially the piston is resting on the stops and has a temperature of T, = 190°C. The height, hi, from the bottom of the cylinder is 1.2 m. The piston has a mass (m,) of 3.6 kg and a diameter (D) of 600 mm. Weights with a total mass of mw are sitting on top of the piston. Heat is added until the temperature reaches T2= 260°C at which point the piston just starts to lift off the stops. More heat is then added until the temperature reaches T3= 310°C. Treat air as an ideal gas. Assume P. = 101 kPa. a) Determine the initial pressure P1,of the air. b) Determine the mass of the weights, mw. c) Determine the change in height of the piston from state 1 to state 3 (h3-hi). d) Draw all state points and process lines on a P-V (pressure – volume) diagram. Include labeled constant temperature lines and label the pressure and volume values corresponding to each state point. Weights, mw P. Piston, mp hi Air
Transcribed Image Text:A piston cylinder assembly shown in the figure contains 0.9 kg of air. Initially the piston is resting on the stops and has a temperature of T, = 190°C. The height, hi, from the bottom of the cylinder is 1.2 m. The piston has a mass (m,) of 3.6 kg and a diameter (D) of 600 mm. Weights with a total mass of mw are sitting on top of the piston. Heat is added until the temperature reaches T2= 260°C at which point the piston just starts to lift off the stops. More heat is then added until the temperature reaches T3= 310°C. Treat air as an ideal gas. Assume P. = 101 kPa. a) Determine the initial pressure P1,of the air. b) Determine the mass of the weights, mw. c) Determine the change in height of the piston from state 1 to state 3 (h3-hi). d) Draw all state points and process lines on a P-V (pressure – volume) diagram. Include labeled constant temperature lines and label the pressure and volume values corresponding to each state point. Weights, mw P. Piston, mp hi Air
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